Ahāts

Alliterative verse
"Thay bowen by bonkes wher bowes ar bare
Thy clomben by cliffes wher clenges the colde."
(From Sir Gawain and the Green Knight)

Iambics
"O yonge, freshe folkes, he or she,
In which that love up groweth with your age;
Repeyreth hom fro worldy vanyte."
(From Chaucer’s Troilus and Criseyde)